GB2590013A - Biometric Authentication - Google Patents

Biometric Authentication Download PDF

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Publication number
GB2590013A
GB2590013A GB2101046.7A GB202101046A GB2590013A GB 2590013 A GB2590013 A GB 2590013A GB 202101046 A GB202101046 A GB 202101046A GB 2590013 A GB2590013 A GB 2590013A
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Prior art keywords
biometric
ear
user
authentication device
audio signal
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GB2101046.7A
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GB202101046D0 (en
GB2590013B (en
Inventor
Paul Lesso John
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Cirrus Logic International Semiconductor Ltd
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Cirrus Logic International Semiconductor Ltd
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L17/00—Speaker identification or verification techniques
    • G10L17/06—Decision making techniques; Pattern matching strategies
    • G10L17/10—Multimodal systems, i.e. based on the integration of multiple recognition engines or fusion of expert systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/12—Audiometering
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/70—Multimodal biometrics, e.g. combining information from different biometric modalities
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/08—Speech classification or search
    • G10L15/18—Speech classification or search using natural language modelling
    • G10L15/1815—Semantic context, e.g. disambiguation of the recognition hypotheses based on word meaning
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/28—Constructional details of speech recognition systems
    • G10L15/30—Distributed recognition, e.g. in client-server systems, for mobile phones or network applications

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Business, Economics & Management (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Game Theory and Decision Science (AREA)
  • Collating Specific Patterns (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

A method for authenticating a user of an electronic device is disclosed. The method comprises: responsive to detection of a trigger event indicative of a user interaction with the electronic device, generating an audio probe signal to play through an audio transducer of the electronic device; receiving a first audio signal comprising a response of the user-s ear to the audio probe signal; receiving a second audio signal comprising speech of the user; and applying an ear biometric algorithm to the first audio signal and a voice biometric algorithm to the second audio signal to authenticate the user as an authorised user.

Claims (21)

1.A method for authenticating a user of an electronic device, the method comprising: responsive to detection of a trigger event indicative of a user interaction with the electronic device, generating an audio probe signal to play through an audio transducer of the electronic device; receiving a first audio signal comprising a response of the userâ s ear to the audio probe signal; receiving a second audio signal comprising speech of the user; and applying an ear biometric algorithm to the first audio signal and a voice biometric algorithm to the second audio signal to authenticate the user as an authorised user.
2. The method according to claim 1 , wherein the audio probe signal comprises a prompt to the user to speak, and wherein the second audio signal is received in response to the prompt.
3. The method according to claim 1 , wherein the ear biometric algorithm comprises generation of an ear biometric score based on the comparison, and voice biometric algorithm comprises generation of a voice biometric score based on the comparison.
4. The method according to claim 3, wherein the ear biometric score and the voice biometric score are fused to generate a combined biometric score, and wherein the combined biometric score is compared to one or more threshold values to generate a combined biometric result.
5. The method according to claim 3, wherein the ear biometric score is compared to a first threshold value to generate an ear biometric result, wherein the voice biometric score is compared to a second threshold value to generate a voice biometric result, and wherein the ear biometric result is combined with voice biometric result to generate a combined biometric result.
6. An authentication device for authenticating a user of an electronic device, the authentication device comprising: an audio signal generation module for generating, responsive to detection of a trigger event indicative of a user interaction with the electronic device, an audio probe signal to play through an audio transducer of the electronic device; one or more inputs for receiving a first audio signal comprising a response of the userâ s ear to the audio probe signal, and a second audio signal comprising speech of the user; and a biometric authentication module for utilizing an ear biometric algorithm on the first audio signal and a voice biometric algorithm on the second audio signal to authenticate the user as an authorised user.
7. The authentication device according to claim 6, wherein the audio probe signal comprises a prompt to the user to speak, and wherein the second audio signal is received in response to the prompt.
8. The authentication device according to claim 6, wherein the ear biometric algorithm comprises generation of an ear biometric score based on the comparison, and the voice biometric algorithm comprises generation of a voice biometric score based on the comparison.
9. The authentication device according to claim 8, wherein the ear biometric score and the voice biometric score are fused to generate a combined biometric score, and wherein the combined biometric score is compared to one or more threshold values to generate a combined biometric result.
10. The authentication device according to claim 8, wherein the ear biometric score is compared to a first threshold value to generate an ear biometric result, wherein the voice biometric score is compared to a second threshold value to generate a voice biometric result, and wherein the ear biometric result is combined with voice biometric result to generate a combined biometric result.
11. The authentication device according to claim 8, wherein the ear biometric score is generated based on a comparison between one or more features extracted from the first audio signal and corresponding features of an ear biometric template for the authorised user.
12. The authentication device according to claim 8, wherein the voice biometric score is generated based on a comparison between one or more features extracted from the second audio signal and corresponding features of a voice biometric template for the authorised user.
13. The authentication device according to claim 6, further comprising a gating module configured to monitor the second audio signal for the speech of the user in a time window.
14. The authentication device according to claim 13, wherein the time window is defined in dependence on a gating signal corresponding to detection of bone- conducted speech in the first audio signal.
15. The authentication device according to claim 6, wherein the audio probe signal is modulated to stimulate the response of the userâ s ear at one or more frequencies which are discriminative between different users.
16. The authentication device according to claim 6, wherein the response of the userâ s ear comprises one or more of a frequency response of the userâ s ear canal and an oto-acoustic emission of the userâ s ear.
17. The authentication device according to claim 6, wherein the trigger event comprises a spoken predetermined keyword or keyphrase by the user.
18. The authentication device according to claim 6, wherein the trigger event comprises a physical interaction by the user with the electronic device.
19. The authentication device according to claim 6, wherein the trigger event comprises an in-ear or an on-ear detection event.
20. The authentication device according to claim 6, wherein the speech of the user in response to the prompt comprises a command for execution by the electronic device.
21. An electronic device comprising the authentication device according to claim 6.
GB2101046.7A 2018-08-31 2019-08-15 Biometric Authentication Active GB2590013B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/118,950 US10915614B2 (en) 2018-08-31 2018-08-31 Biometric authentication
PCT/GB2019/052302 WO2020044019A1 (en) 2018-08-31 2019-08-15 Biometric authentication

Publications (3)

Publication Number Publication Date
GB202101046D0 GB202101046D0 (en) 2021-03-10
GB2590013A true GB2590013A (en) 2021-06-16
GB2590013B GB2590013B (en) 2022-07-06

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GB2101046.7A Active GB2590013B (en) 2018-08-31 2019-08-15 Biometric Authentication

Country Status (4)

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US (2) US10915614B2 (en)
CN (1) CN112585676A (en)
GB (1) GB2590013B (en)
WO (1) WO2020044019A1 (en)

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